P.S.
From what I know of pits, they do not function like photo receptors on a camera lens because they don't function with light. Instead they function through heat. So it is this heating of the pit holes that trigger nerve signals. Now, whether these nerves rely solely on the thickness of the scale around it and the size of the hole or if it still functions with a variation of thickness and hole size is the question (do the scaleless still have the labial holes?). Not one scholarly article in structrual biology addresses it. Probably because Brian is the first guy that figured out how to produce one.

You know, I'm going to shoot Brian an email and see if he can run this experiment with his scaleless. It would be a great science project for my kid. This could also provide very critical knowledge on the function of the labial pits because, even to today, that's still an evolving science.